FCaptcha. Open-source, invisible CAPTCHA that detects AI agents, bots, and headless browsers via 40+ behavioral signals, device & TLS fingerprinting, and SHA-256 proof of work. Self-hosted and privacy-first.

Problem

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.